Hubbell Incorporated Dry Type Buck Boost Transformer T181050

4.37 INCH W X 4.2 INCH D X 9.06 INCH H SIZE 60 HZ FREQUENCY RATING 1 PHASE(S) INDOOR/OUTDOOR, INDUSTRIAL AND COMMERCIAL APPLICATION NEMA 3R ENCLOSURE ENCAPSULATED, TOTALLY ENCLOSED CONSTRUCTION 0.5 KVA POWER RATING 277/480 V PRIMARY VOLTAGE 208/277 V SECONDARY VOLTAGE 115 DEG C TEMPERATURE RISE COPPER WINDING TYPE APPLICABLE STANDARD NEMA ST-20, NEC, ANSI ENCLOSURE MATERIAL STAINLESS STEEL APPROVAL UL, CSA MOUNTING WALL SERIES GP12 MODEL